Top watches
Fitpolo GTX20 · 1.85-inch AMOLED · always-on option

Fitpolo 1.85-inch AMOLED Smart Watch

A square Fitpolo watch with a 390 × 450 AMOLED screen that stays readable in sunshine, Bluetooth calling, heart rate, SpO2, stress and sleep tracking, and two straps in the box.

  • Screen1.85-inch AMOLED, 390 × 450
  • Always-onOptional always-on display
  • CallsBluetooth calling with voice assistant
  • Water3 ATM
  • Battery350mAh, 7–10 days
  • StrapsSilicone and braided, 20mm
Great if you
  • You train outdoors and need a screen you can read in direct sun
  • You want an always-on clock face like a regular watch
  • You like a braided strap for all-day comfort
  • You have a larger wrist up to 245mm
Skip it if you
  • Your iPhone runs older than iOS 13 or Android is older than 8.0
  • You want Alexa built into the watch
  • You want built-in GPS for phone-free runs
Strap it on

Read your pace in bright sun on the AMOLED Fitpolo

The Fitpolo GTX20 is built around its 1.85-inch AMOLED screen. At 390 × 450 pixels and up to 600 nits, it stays clear on a midday run or a beach walk, where many budget LCDs wash out. AMOLED pixels light themselves, so blacks are deep and colours pop without a backlight glow.

That self-lit panel brings two useful habits. You can leave an always-on face running, so the time and step count show without a wrist flick, just like a regular watch. And a dark watch face saves power, because black pixels on AMOLED draw almost nothing.

  • Always-on: handy at the desk and in meetings, costs battery days.
  • Raise to wake: the saver setting for training weeks.
  • Dark faces: the easiest way to stretch the charge on an AMOLED watch.
  • Dynamic faces: fun on a rest day, heavier on the battery.

Fitpolo quotes 7 to 10 days from the 350mAh battery after a charge of about 2 hours. The spread depends on the always-on setting, how often you take calls and whether heart rate runs around the clock. Most wearers land near the low end with everything switched on.

Try this: run always-on for the first week, then turn it off for the second. Compare the battery drop, and keep whichever version of the habit you will stick with.

The case measures 50.7 × 43 × 10.5 mm. It is a large face, which makes stats easy to read mid-workout and suits bigger wrists well.

A sharp panel also makes photo dials worth the effort. A picture of the next race route or a training partner looks crisp at this resolution, where lower-resolution screens turn faces grainy. More on loading your own picture is in the wallpaper guide.

Spec sheet

Every number on the box

SpecValue
ModelFitpolo GTX20
Screen1.85-inch AMOLED touchscreen, square
Resolution390 × 450
BrightnessUp to 600 nits
Always-on displayOptional
CallsBluetooth answer and make, texts and app alerts
VoicePhone voice assistant (Siri or Google Assistant)
Health trackingHeart rate, blood oxygen, stress, sleep
Women's healthMenstrual cycle tracking
Sports modes120+
GPSUses the phone's GPS
Water resistance3 ATM
Battery350mAh lithium polymer
Battery life7–10 days
Charging timeAbout 2 hours
Case size50.7 × 43 × 10.5 mm, plastic case
Straps2 included, silicone and braided, 20mm quick-release
Wrist fit155–245 mm
Phone supportiOS 13.0+ and Android 8.0+
In the boxWatch, 2 straps, charging cable, user manual

Track SpO2, stress and sleep with the Fitpolo GTX20

The GTX20 covers the health set most buyers look for: heart rate, blood oxygen, stress and sleep quality, plus menstrual cycle tracking. The readings sync to the phone app, where a week of data shows patterns a single number cannot.

Daily activity data includes steps, distance and calories. The watch borrows the phone's GPS for route distance, so carry the phone on outdoor runs if the map matters to you.

Where each reading helps a routine:

  • Resting heart rate: a falling trend over a month usually follows steady cardio.
  • Blood oxygen: spot checks at rest, never during movement, for a cleaner number.
  • Stress: a cue for a walk or a few slow breaths during a long workday.
  • Sleep: total time and quality, checked each morning.
  • Cycle tracking: a period log with alerts before the next date.

Fitpolo marks blood oxygen as non-medical, which is the honest label for every wrist sensor in this class. Fit the watch snugly a finger above the wrist bone and keep still for spot readings.

For training, 120+ exercise modes cover walking, running, yoga, cycling, swimming, tennis, golf, hiking and more. Every session logs duration, pulse and energy burned.

SessionMode to pickWhat to watch
Morning walkWalkingSteps and heart rate
Lunch runOutdoor runDistance via phone GPS
Evening classYogaTime and calories

Pick one number to improve per month rather than chasing all of them. A lower resting heart rate, an extra 30 minutes of sleep or a steady weekly step total are all goals the GTX20 can show clearly. Trying to move every graph at once usually ends with the watch in a drawer.

Details on sensor limits are in the accuracy guide.

In the line-up

Where it stands in the line-up

FitPro smart watch models by type, September 2026. Highlighted: Fitpolo 1.85-inch AMOLED Smart Watch.

Fit the braided strap and pair the GTX20 in one evening

Two straps ship with the watch: silicone for sweaty sessions and a braided band for all-day comfort. Both use 20mm quick-release pins, so swapping takes seconds and any 20mm band fits later. The straps cover wrists from 155 to 245 mm, a wider range than most budget watches.

  1. Charge for about 2 hours on the included cable.
  2. Check your phone: iOS 13.0 or later, or Android 8.0 or later.
  3. Install the companion app, allow Bluetooth, notifications and location.
  4. Let the app find the GTX20, then approve the extra audio link for calls.
  5. Turn on heart rate, SpO2, stress and sleep tracking.
  6. Choose a face and decide on always-on.

Calling works over Bluetooth with the watch's speaker and microphone. You can answer calls and check notifications while cooking or walking, and the phone's own assistant (Siri or Google Assistant) handles voice requests.

The 3 ATM rating means the watch shrugs off splashes, rain and sweat. It is not a swim rating for laps, and hot showers and saunas are best avoided.

  • Rinse the silicone strap after workouts and let it dry.
  • Keep the braided band for dry days; it holds sweat longer.
  • Wipe the charging contacts before every charge.

Syncing hiccups are the most common complaint on any budget watch, and the fix order matters. If the GTX20 stops syncing, update the app first, restart the watch, and only then unpair and pair again; that order keeps your stored history safe.

For step-by-step pairing and fixes, see the connection guide. For a spare 20mm or 22mm band, see the strap sizes.

Swap in

Other watches for the same goal

Round AMOLED face1 Fitpolo Round AMOLED Smart Watch
Fitpolo Round AMOLED Smart Watch
The Fitpolo round AMOLED has a 1.32-inch always-on dial in a stainless-steel case.
  • 1.32" round AMOLED touchscreen
  • Take calls from the wrist
  • Heart rate · SpO2 · sleep
Strap it on
Calling on an aluminium case3 Blackview R50 Pro Smart Watch
Blackview R50 Pro Smart Watch
The Blackview R50 Pro takes calls on a 1.85-inch screen with SpO2 and two straps.
  • 1.85" square colour touchscreen
  • Take calls from the wrist
  • Heart rate · SpO2 · sleep
Strap it on

Pick the square GTX20 or a round AMOLED dial

Fitpolo sells two AMOLED watches, and the choice starts with shape. The GTX20 is square with a 1.85-inch panel and Bluetooth calling. The round Fitpolo has a 1.32-inch AMOLED face and looks like a classic watch.

WatchDisplayBest for
Fitpolo GTX201.85-inch AMOLED, squareReadable stats, calls, big wrists
Fitpolo round AMOLED1.32-inch AMOLED, roundA classic look at the desk
Bakoor band1.1-inch AMOLEDA slim band for sleep
YBYHFAA BSC601.1-inch AMOLEDA small AMOLED tracker

Choose the GTX20 if you want the largest AMOLED screen in the Fitpolo line with calling and a braided strap. Choose the round model for a watch that reads as jewellery. Choose a slim AMOLED band if the watch should disappear at night.

What the GTX20 gives up:

  • No Alexa on the wrist; voice goes through the phone's assistant.
  • No built-in GPS; outdoor distance needs the phone nearby.
  • No support for phones older than iOS 13 or Android 8.0.

Against non-AMOLED calling squares such as the Trendia TG09L, the GTX20 trades a metal case and extra straps for a brighter, sharper panel and the always-on mode. If you spend most workouts outside, the screen is the part you will notice every day.

For most gym-and-walk routines those limits do not bite. The screen, the always-on option and the two straps are the reasons to pick it, and the 7 to 10 day battery keeps charging to a weekly habit.

Warm-up questions

Before you strap it on

Does the Fitpolo GTX20 make calls?

Yes. Calls go both ways over Bluetooth through the watch's own mic and speaker, and texts and app alerts show on the AMOLED screen.

Can the GTX20 screen stay on all the time?

Yes. The AMOLED screen has an optional always-on mode. Leaving it on shortens the 7 to 10 day battery.

What strap size fits the Fitpolo GTX20?

20mm quick-release straps. The two included straps fit wrists from 155 to 245 mm.

Can I swim with the GTX20?

It is rated 3 ATM for splashes, rain and sweat. Take it off before hot showers and saunas, and do not treat it as a lap-swimming watch.

Which phones work with the GTX20?

iPhones on iOS 13.0 or later and Android phones on 8.0 or later.